General Description
The MAX534 serial-input, voltage-output, 8-bit quad digital-to-analog converter (DAC) operates from a single +4.5V to +5.5V supply. Internal precision buffers swing rail to rail, and the reference input range includes both ground and the positive rail. The MAX534 features a 2.5µA shutdown mode.

Features
♦ +4.5V to +5.5V Single-Supply Operation
♦ Ultra-Low Supply Current:
   0.8mA while Operating
   2.5µA in Shutdown Mode
♦ Ultra-Small 16-Pin QSOP Package
♦ Ground to VDD Reference Input Range
♦ Output Buffer Amplifiers Swing Rail to Rail
♦ 10MHz Serial Interface Compatible with SPI, QSPI (CPOL = CPHA = 0 or CPOL = CPHA = 1), and
Microwire
♦ Double-Buffered Registers for Synchronous Updating
♦ Serial Data Output for Daisy Chaining
♦ Power-On Reset Clears Serial Interface and Sets All Registers to Zero
♦ Software Shutdown
♦ Software-Programmable Logic Output (µC I/O Extender)
♦ Asynchronous Hardware Clear Resets All Internal Registers to Zero

Applications
Digital Gain and Offset Adjustments
Programmable Attenuators
Programmable Current Sources
Portable Instruments